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3 commits

Author SHA1 Message Date
Milan Obuch
1a4bf17b02 arm: zynq: zybo z7: fix MIO init issue 
The board has two push button connected to MIO pins
50 and 51, which have a pull-down resistor and are
connected to 1.8V when pressed.

These two pins are wrongly initialized with internal
pull-up enabled so they are reported as 1 all the time
with no change when pressed.

Disable the internal pull-up to fix the issue.

Signed-off-by: Milan Obuch <u-boot@dino.sk>
Signed-off-by: Luis Araneda <luaraneda@gmail.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
 2020-02-28 12:04:10 +01:00
Michal Simek
47446a3c66 arm: zynq: Remove low level UART setting 
There is no reason to do serial initializationin low level code. Uart
driver does it already based on DT.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
 2020-01-14 09:05:53 +01:00
Luis Araneda
58f449676a arm: zynq: add support for the zybo z7 board 
The board is manufactured by Digilent
Main features:
- Soc: XC7Z010 (Z7-10) or XC7Z020 (Z7-20)
- RAM: 1 GB DDR3L
- FLASH: 16 MB QSPI
- 1 Gbps Ethernet
- USB 2.0
- microSD slot
- Pcam camera connector
- HDMI Tx and Rx
- Audio codec: stereo out, stereo in, mic
- 5 (Z7-10) or 6 (Z7-20) Pmod ports
- 6 push-buttons, 4 switches, 5 LEDs
- 1 (Z7-10) or 2 (Z7-20) RGB LEDs

Signed-off-by: Luis Araneda <luaraneda@gmail.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
 2018-08-06 08:44:35 +02:00